Thank you for your warm welcome!
Yes, that is exactly what I have in mind. Similar to "y-mixer" setup from Prusa (and many others out there).
I noticed the foehnsturm project, I wish I could be a beta tester. It looks very promising already.
Since you have been experimenting with dual extrusion yourself, would you be able to address the question about the thermistor? Will the firmware trigger a safety when for instance the second thermistor detects a rising temperature when the second heater cartridge is switched off?
I want to make sure what I have in mind will work before I start buying extra parts for this project.
What other project (the one that's not in English) are you referring to? Crema's water cooled setup?
Best regards,
Chris